An R package providing tools to visualize movement data (e.g. from GPS tracking) and temporal changes of environmental data (e.g. from remote sensing) by creating video animations.
Hi there,
I am using the example code from the move vis website http://movevis.org/articles/example-3.html
frames <- frames_spatial(m, map_service = "mapbox", map_type = "satellite",
map_token = "YOUR_MAPBOX_TOKEN")
but it returns the following error
Error in wkt(projfrom) : could not find function "wkt"
Is there a package I need to update?
Here's the code:
library(moveVis)
library(move)
library(raster)
library(ggplot2)
data <- read.csv(file.choose())
data_df <- methods::as(data, "data.frame")
movedata <- df2move(data_df,
proj = "+init=epsg:4326 +proj=longlat +datum=WGS84 +no_defs",
x = "Longitude", y = "Latitude", time = "timestamp", track_id = "trackID")
movedata <- align_move(movedata, res = 1, unit = "hours")
Here's my data structure
'data.frame': 519 obs. of 8 variables:
$ trackID : Factor w/ 2 levels
$ Latitude : num
$ Longitude: num
$ HDOP : num 2.4 2.3 1.8 2.6 1.2 1 1.1 2.2 1 1.8 ...
$ timestamp: POSIXct, format: "2020-09-11 09:30:11" "2020-09-11 11:30:10" "2020-09-11 12:30:06" "2020-09-11 01:30:11" ...
marcoscarloseduardo
commented
3 years ago
Hi there, I am using the example code from the move vis website http://movevis.org/articles/example-3.html frames <- frames_spatial(m, map_service = "mapbox", map_type = "satellite", map_token = "YOUR_MAPBOX_TOKEN")
but it returns the following error
Error in wkt(projfrom) : could not find function "wkt"
Is there a package I need to update?
Here's the code:
library(moveVis) library(move) library(raster) library(ggplot2) data <- read.csv(file.choose()) data_df <- methods::as(data, "data.frame") movedata <- df2move(data_df, proj = "+init=epsg:4326 +proj=longlat +datum=WGS84 +no_defs", x = "Longitude", y = "Latitude", time = "timestamp", track_id = "trackID") movedata <- align_move(movedata, res = 1, unit = "hours")
Here's my data structure 'data.frame': 519 obs. of 8 variables: $ trackID : Factor w/ 2 levels $ Latitude : num
$ Longitude: num
$ HDOP : num 2.4 2.3 1.8 2.6 1.2 1 1.1 2.2 1 1.8 ... $ timestamp: POSIXct, format: "2020-09-11 09:30:11" "2020-09-11 11:30:10" "2020-09-11 12:30:06" "2020-09-11 01:30:11" ...